Regulations last checked for updates: Feb 19, 2025

Title 23 - Highways last revised: Jan 14, 2025
All TitlesTitle 23Chapter IPart 637 - PART 637—CONSTRUCTION INSPECTION AND APPROVAL
  • Subpart A - Subpart A [Reserved]
authority: Sec. 1307, Pub. L. 105-178, 112 Stat. 107; 23 U.S.C. 109,114,and; 49 CFR 1.48(b)
source: 60 FR 33717, June 29, 1995, unless otherwise noted.
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